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Amperage Output Test

  1. Ensure drive belt is in good condition and properly tightened. Connect charging system load tester in accordance with manufacturer's instructions. Start and run engine at 2500-3000 RPM and apply load until alternator output levels off.
  2. Record maximum alternator output current. See ALTERNATOR OUTPUT SPECIFICATIONS table for output values. If alternator output is within 20% of rated output amperage, alternator output is okay. If alternator does not produce rated output, go to VOLTAGE OUTPUT TEST.
ALTERNATOR OUTPUT SPECIFICATIONS

Application Amps Rating
2.0L 80
2.5L 90